Stratum maps every active residential listing in New York and enriches each one with machine-learning spatial data — estimated square footage, room-by-room breakdowns, window and light metrics, and floorplans. Filter by any factor, then export your comp set to Excel in a click.
Try a sample of the NYC map free — no signup. Paid plans unlock the full, daily-updated live market and Excel exports.
StreetEasy lets you filter by beds, baths, and price. Stratum lets you filter every live listing by the spatial data that actually defines a home — and export the result.
One interactive map of the live NYC market — enriched with spatial data no other tool has.
Every active residential listing in NYC on a single map. Apply filters and matching listings light up green while the rest fade back — the whole market at a glance.
Our algorithm infers square footage from the floorplan — so you have a credible size even on the many listings that never report one.
See how every unit's space is actually allocated — what share is kitchen, bath, bedroom, and living area — computed directly from the floorplan.
Window count and window-edge percentage for each unit, derived from floorplan geometry — a measurable proxy for light and exposure.
Slide and select your way to the exact set of units you care about: neighborhood, rent, estimated sqft, year built, beds, baths, layout %, and window metrics.
Turn any filtered view into a clean comp list — address, neighborhood, estimated sqft, beds, baths, and link — exported to Excel in a single click.
Opens an interactive sample of the NYC map in a new tab.
Stratum gives you an edge at every stage of the deal.
Narrow the entire live market down to the units that truly compare — by size, layout, light, and location — then export the set to Excel in seconds.
Compare like-for-like using ML-estimated square footage and real room breakdowns — so your number holds up in any seller conversation.
Pull up any listing's floorplan and spatial profile before a showing or a pitch — so you can speak to the layout with authority.
Each listing on the map carries a structured spatial profile. A sample of the fields you can filter and export.
Full access to the map for one agent, or equip your whole team. Founding members get early-access pricing.
For the individual broker who wants an edge on every deal.
Equip your entire team with a competitive advantage on every deal.
Tell us about your business and we'll set you up with the right plan — plus founding-member pricing.